Blocking all incoming calls

If you don't want to be disturbed, you can block all calls coming to your number. All your incoming calls are then treated as if you're already on a call. Depending on the options you've set up for handling busy calls, your calls can be forwarded to another number or to your voicemail. Your callers hear the 'busy' greeting message.

If you share your line with other users, activating Do Not Disturb blocks all incoming calls for those users too.